WIXOM, MI, USA, May 26, 2025 – ANCA has developed a high-performance Spindle Speed Increaser kit designed to elevate the capabilities of its FX, MX, and TX grinding machine platforms. This innovative solution allows users to achieve wheel speeds of up to 50,000 RPM, making it ideally suited for small-diameter grinding wheels and specialized applications, such as PCD pocket grinding and internal diameter (ID) grinding.
Enhancing versatility with high-speed precision
The Spindle Speed Increaser kit is a simple yet powerful addition that significantly expands the potential of your existing ANCA machine. Designed to operate seamlessly within the machine’s grinding spindle, it enables users to access ultra-high spindle speeds without any special machine modifications.
Importantly, the Spindle Speed Increaser is fully compatible with ANCA’s automatic wheel pack changer, allowing it to sit alongside conventional grinding wheel packs for convenient, automated tool changes.
Ideally suited for grinding wheels under 10mm in diameter, the kit opens new opportunities in high-precision grinding applications. Originally developed for the TX platform, the Spindle Speed Increaser is now also offered for FX and MX machines, providing broader access to its capabilities across ANCA’s customer base.
“The regular ANCA grinding spindle runs up to 10,000 RPM – perfect for most standard tool grinding operations using wheels above 75mm in diameter,” explains Duncan Thompson, ANCA Product Manager. “However, customers have been asking for a solution to efficiently use smaller wheels. These wheels require significantly higher RPMs to achieve the surface speeds necessary for optimal grinding, and the Spindle Speed Increaser provides an elegant solution to this challenge.”
Technology behind the upgrade
At the heart of the Spindle Speed Increaser is a compact geared mechanism driven by the main spindle. This gearing increases output RPM by a factor of approximately seven, achieving speeds up to 50,000 RPM at the grinding wheel.
The kit is supplied with a comprehensive set of seven collets, supporting wheel shank sizes from 1mm to 7mm, providing users with flexibility to suit a range of tool geometries and grinding operations.
Precision in PCD pocket and ID grinding
One of the key use cases for the Spindle Speed Increaser is the grinding of PCD (polycrystalline diamond) pockets – a common operation in the production of tools used across the automotive, aerospace, and woodworking industries.
A typical manufacturing process begins with standard grinding operations such as fluting and relief, using conventional wheel packs. Then, using the Spindle Speed Increaser, small pencil grinding wheels can be deployed to accurately create PCD pockets at high RPM. This ensures optimal surface finish and accuracy in a single-machine setup.
“Using the Spindle Speed Increaser for pocket grinding eliminates the need for secondary setups,” says Duncan. “It saves time, reduces the risk of alignment errors, and increases overall manufacturing efficiency.”
Complementing the hardware, ANCA also offers dedicated PCD pocket grinding software. This easy-to-use package enables users to define complex pocket geometries quickly and precisely, further streamlining the tool production process.
A smart investment for greater return
Available as an optional accessory for both new and existing FX, MX, and TX machines, the Spindle Speed Increaser is an ideal upgrade for tool manufacturers looking to broaden their production capabilities and maximise the value of their machine investment.
“The Spindle Speed Increaser, combined with ANCA’s PCD pocket software, opens the door to new tooling opportunities without requiring additional capital equipment,” Duncan adds. “It’s another smart way to unlock more performance from your existing ANCA machine.”
To see the Spindle Speed Increaser at work, watch our YouTube video showcasing its functionality and application in real-world scenarios.
About ANCA
ANCA is a market leading manufacturer of CNC grinding machines. It was founded in 1974 in Melbourne, Australia where the company still has its global headquarters. ANCA CNC grinders are used for manufacturing precision cutting tools and components across a diverse range of competitive industries including cutting tool manufacturers, power generation, woodworking, automotive, aerospace, electronics and medical. For more information, visit www.anca.com.
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